Janet H. Walker, Lee Sproull, R. Subramani. Using a human face in an interface. In Beth Adelson, Susan T. Dumais, Judith S. Olson, editors, Conference on Human Factors in Computing Systems, CHI 1994, Boston, Massachusetts, USA, April 24-28, 1994, Proceedings. pages 85-91, ACM, 1994. [doi]
Abstract is missing.